外来語じゃハルマゲドン
From pixiv
Luuktung or Daai 今年は魔王の格好で
From twitter

For a foreign loan word, Armageddon.
From pixiv. The lyrics of Hirasawa Susumu's Ruktunor Die/Luuktung or Daai.
Luuktung or Daai
Demon Lord-themed guising this year.
From twitter, posted in the Halloween of 2017.